The Mystery Inc. gang must save Coolsville from an attack of their past monsters brought to life by an evil masked figure trying to take down the gang.

A teenager (Moore), disillusioned by too many examples of love gone wrong, refuses to believe that true love exists. Then this new guy (Ford) comes along...

People are being killed off near a popular mountain lodge, with a legend claiming that the mountain is haunted by a deadly Native American demonic curse.